Which graph represents r = 2 + 2 cos(O)?

What are the sotions to the quadratic equation 9x^2=4

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi,r^3 , where r is the sphere’s radius.